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Finding the Fourth Proportional to 338,931.54, 508,410.54 and 102,274.25

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Solution

The fourth proportional to 338,931.54, 508,410.54 and 102,274.25 is: 153,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,931.54 : 508,410.54 = 102,274.25 : x
  2. Step 2: Convert to fraction form
    338,931.54/508,410.54 = 102,274.25/x
  3. Step 3: Cross multiply
    338,931.54x = 508,410.54 × 102,274.25
  4. Step 4: Simplify right side
    338,931.54x = 51,997,304,128.54
  5. Step 5: Solve for x
    x = 51,997,304,128.54/338,931.54
  6. Step 6: Final answer
    x = 153,415.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.